Conductive slurry resistivity detection device

Abstract

The invention discloses a conductive paste resistivity detection device, and belongs to the technical field of lithium batteries. The device mainly comprises a vessel set, a supporting shaft and a bearing table, the supporting shaft is installed on the bearing table, the vessel set comprises a bottom plate and a cavity which are distributed in a stacked mode from bottom to top, the bottom plate and the cavity are located on the side edge of the supporting shaft, and the cavity is of a structure with the top end closed to form a closed end and the bottom end provided with an opening; a first flow channel communicated with the sample cavity is formed in the cavity, the bottom plate is connected with the supporting shaft and can rotate around the axis of the supporting shaft, the end face, close to the cavity, of the bottom plate is flat, and the cavity is also connected with the supporting shaft and can rotate around the axis of the supporting shaft. According to the conductive slurry resistivity detection device, the surface flatness of the sample can be improved, the accuracy of detection data is ensured, and no waste is generated in the sample manufacturing process.

Description

Technical Field

[0001] This invention relates to the field of lithium battery technology, and more specifically to a conductive slurry resistivity detection device. Background Technology

[0002] The current method for measuring the resistivity of conductive pastes requires mixing the conductive paste to be tested with deionized water to obtain a uniformly dispersed conductive paste. Then, a binder is added to prepare a uniform conductive paste. After drying, the upper surface of the sample is scraped off with a scraper to obtain a qualified sample. Only then can the probe of a four-probe testing instrument contact the flat surface of the sample to measure the data. Because the sample is solidified, the scraper can easily lift the material on the sample surface during the scraping process, thus affecting the flatness of the sample. Therefore, this method not only makes it difficult to ensure the flatness of the sample surface, but also generates waste that is not conducive to centralized treatment.

[0003] Therefore, it is necessary to provide a new type of conductive paste resistivity detection device. Summary of the Invention

[0004] Based on the aforementioned problems in the prior art, the purpose of this invention is to provide a conductive paste resistivity detection device that can improve the surface flatness of the sample, ensure accurate detection data, and prevent waste from being generated during the sample preparation process.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A conductive paste resistivity detection device is provided, comprising a container assembly, a support shaft, and a support platform. The support shaft is mounted on the support platform. The container assembly includes a bottom plate and a cavity stacked from bottom to top. The bottom plate and the cavity are located on the side of the support shaft. The cavity has a closed top forming a closed end and an open bottom end. A sample chamber is provided inside the cavity. A first flow channel communicating with the sample chamber is provided on the cavity. The bottom plate is connected to the support shaft and can rotate around the axis of the support shaft. The end face of the bottom plate near the cavity is flat. The cavity is also connected to the support shaft and can rotate around the axis of the support shaft.

[0006] Furthermore, when the base plate and the cavity rotate around the support shaft until the base plate and the opening of the cavity are aligned, the base plate can cover the bottom of the cavity and close the opening. At this time, the sample can be injected into the sample cavity through the first flow channel, and when the base plate rotates around the support shaft until the base plate and the opening of the cavity are misaligned, the opening at the bottom of the base plate is opened.

[0007] Furthermore, the support platform is provided with a detection area and a transfer area at intervals. The detection area is equipped with a four-probe tester, which has probes for contacting the sample to detect resistivity.

[0008] Furthermore, the vessel assembly includes multiple cavities stacked along the axial direction of the support shaft. When two adjacent cavities are rotated to align, the closed end of the lower cavity can cover the opening of the upper cavity to close the opening of the upper cavity.

[0009] Furthermore, the outer surface of the closed end of the cavity is flat.

[0010] Furthermore, a sealing gap is formed between the bottom plate and the opening of the cavity, or between the lower cavity and the opening of the upper cavity.

[0011] Furthermore, the bottom plate has a flange at one end near the cavity that conforms to the contour of the opening, the closed end of the cavity has a flange that conforms to the contour of the opening, and a notch is provided on the cavity near the opening, so that the flange and the notch can be axially inserted.

[0012] Furthermore, the conductive slurry resistivity detection device also includes a support arm. The base plate / cavity is connected to the support shaft via the support arm. The support arm is provided with a window through which the support shaft passes. The outer side wall of the support shaft is provided with a guide groove. The side wall of the window is provided with a locking protrusion, which is installed in the guide groove. The guide groove includes a spiral section, a vertical section one, and a vertical section two. The spiral section extends spirally around the axis of the support shaft. The vertical section one and the vertical section two are respectively connected to the two ends of the spiral section, and the vertical section one and the vertical section two extend along the axial direction of the support shaft.

[0013] Furthermore, an abutment piece is provided on the outer side of the support arm, and the abutment piece extends circumferentially along the support shaft.

[0014] Furthermore, the cavity is provided with a second flow channel communicating with the sample cavity. The first flow channel is used to introduce the fluid sample when it is turned on, and the second flow channel is used to adjust the air pressure of the sample cavity. When the fluid sample is introduced into the sample cavity through the first flow channel, the second flow channel is switched to connect to the external environment. When the air pressure of the sample cavity is reduced through the second flow channel, the first flow channel is switched to close. When it is necessary to promote the accelerated solidification of the fluid sample in the sample cavity, the first flow channel is introduced with airflow while the second flow channel is connected to the external environment, or the second flow channel is introduced with airflow while the first flow channel is connected to the external environment.

[0015] Compared with the prior art, one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects: The conductive slurry resistivity detection device in this embodiment of the invention includes a container assembly, a support shaft, and a support platform. The support shaft is mounted on the support platform. The container assembly includes a bottom plate and a cavity stacked from bottom to top. The bottom plate and the cavity are located on the side of the support shaft. The cavity has a closed top and an open bottom. A sample chamber is provided inside the cavity, and a first flow channel communicating with the sample chamber is provided on the cavity. The bottom plate is connected to the support shaft and can rotate around the axis of the support shaft. The end face of the bottom plate near the cavity is flat, allowing the fluid sample in the sample chamber to flow and spread evenly when it contacts the end face of the bottom plate near the cavity, ensuring excellent flatness of the lower surface of the sample, i.e., the surface near the opening. The cavity is also connected to the support shaft and can rotate around the axis of the support shaft. When the bottom plate and the cavity rotate around the support shaft until the bottom plate and the opening of the cavity are aligned, the bottom plate can cover the bottom of the cavity and close the opening. At this time, the sample can be injected into the sample chamber through the first flow channel. The fluid sample is self-leveled on the end face of the base plate near the cavity under gravity. When the base plate rotates around the support shaft until it is misaligned with the opening of the cavity, the opening at the bottom of the base plate is opened. At the same time, a negative pressure is formed by venting the cavity, which allows the solidified sample in the sample cavity to be adsorbed into the sample cavity and not fall off. At this time, the surface of the sample near the opening in the sample cavity is used to contact the probe of the four-probe tester in the detection area to detect the resistivity of the sample. Thus, through the above design, the conductive paste resistivity detection device of the present invention uses the lower surface of the sample for detection, and the sample contacts the end face of the base plate near the cavity through self-flow, ensuring that the surface of the sample near the opening has excellent flatness, ensuring accurate detection data. Compared with the prior art, there is no need to scrape the solidified sample, the sample preparation process does not generate waste, and it is easy to collect and process the sample. After the test is completed, the sample in the sample cavity can be discharged from the opening by releasing the negative pressure in the sample cavity. The operation is simple and quick. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a three-dimensional structural diagram of the conductive paste resistivity detection device provided in the embodiment of the present invention under the first working state.

[0018] Figure 2 for Figure 1 A cross-sectional view of the conductive paste resistivity detection device shown.

[0019] Figure 3 An exploded view of the vessel assembly and support shaft provided in an embodiment of the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the support arm provided in an embodiment of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the support shaft provided in an embodiment of the present invention.

[0022] Figure 6 for Figure 5 Another perspective view of the support axis shown.

[0023] Figure 7 for Figure 2 An enlarged schematic diagram of region A in the middle.

[0024] Figure 8 This is a cross-sectional view of the conductive paste resistivity detection device provided in an embodiment of the present invention under a second working state.

[0025] Figure 9 A cross-sectional view of the conductive paste resistivity detection device provided in an embodiment of the present invention in the third working state.

[0026] In the figure, the following labels are used: 100, sample; 1, vessel group; 11, base plate; 12, cavity; 121, closed end; 122, opening; 123, first flow channel; 124, second flow channel; 13, flange; 14, notch; 15, touch sensor; 16, sealing gap; 2, support shaft; 3, support arm; 31, window; 32, abutment piece; 4, sample cavity; 5, locking protrusion; 6, guide groove; 61, spiral section; 62, vertical section one; 63, vertical section two; 7, lifting structure; 8, bearing platform; 81, detection area; 82, transfer area; 9, partition. Detailed Implementation

[0027] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0028] It should be noted that when a component is referred to as "connected to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0031] Throughout this specification, reference to "an embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, and not all refer to the same embodiment. Furthermore, in one or more embodiments, a particular feature, structure, or characteristic may be combined in any suitable manner.

[0032] Please refer to Figures 1 to 9 As shown, the conductive slurry resistivity detection device provided by the present invention will now be described. This conductive slurry resistivity detection device includes a container assembly 1, a support shaft 2, and a support platform 8. The support shaft 2 is mounted on the support platform 8. The container assembly 1 includes a bottom plate 11 and a cavity 12 stacked from bottom to top. The bottom plate 11 and the cavity 12 are located on the side of the support shaft 2. The cavity 12 has a structure with a closed top forming a closed end 121 and an opening 122 at the bottom. A sample chamber 4 is provided inside the cavity 12, and the cavity 12 is provided with a sample chamber 4. The first flow channel 123 communicates with the sample cavity 4. The bottom plate 11 is connected to the support shaft 2, and the bottom plate 11 can rotate around the axis of the support shaft 2. The end face of the bottom plate 11 near the cavity 12 is flat, so that when the sample 100 in the sample cavity 4 comes into contact with the end face of the bottom plate 11 near the cavity 12, the fluid flows and spreads out, ensuring that the lower surface of the sample 100, i.e., the surface of the sample 100 near the opening 122, has excellent flatness. The cavity 12 is also connected to the support shaft 2, and the cavity 12 can rotate around the axis of the support shaft 2. Figure 2As shown, when the base plate 11 and cavity 12 rotate around the support shaft 2 until the base plate 11 and the opening 122 of the cavity 12 are aligned, the base plate 11 can cover the bottom of the cavity 12 and close the opening 122. At this time, the sample 100 can be injected into the sample cavity 4 through the first flow channel 123, and the sample 100 self-levels on the end face of the base plate 11 near the cavity 12 under the action of gravity; Figure 8 As shown, when the base plate 11 rotates around the support shaft 2 until the base plate 11 is misaligned with the opening 122 of the cavity 12, the opening 122 at the bottom of the base plate 11 is opened. At the same time, by venting the diaphragm 9 to create a negative pressure, the solidified sample 100 in the sample cavity 4 can be adsorbed into the sample cavity 4 and not fall off. At this time, the surface of the sample 100 in the sample cavity 4 near the opening 122 is used to contact the probe of the four-probe tester in the detection area 81 to detect the resistivity of the sample 100. Thus, through the above design, the conductive paste resistivity detection device provided in this embodiment of the invention can... By using the lower surface of the sample 100 for testing, and by allowing the sample 100 to contact the end face of the base plate 11 near the cavity 12 through self-flow, the surface of the sample 100 near the opening 122 is guaranteed to have excellent flatness, ensuring accurate test data. Compared with the prior art, there is no need to scrape the cured sample 100, the sample 100 manufacturing process does not generate waste, and it is easy to collect and process the sample 100. After the test is completed, the sample 100 in the sample cavity 4 can be discharged from the opening 122 by releasing the negative pressure in the sample cavity 4, making the operation simple and quick.

[0033] like Figure 1 As shown, in some embodiments, a detection area 81 and a transfer area 82 are provided on the support platform 8 at intervals. The detection area 81 is provided with a four-probe tester (not shown). The four-probe tester has probes for contacting the sample 100 to detect resistivity. Specifically, the probes can move up and down in the detection area 81 of the support platform 8. The opening 122 of the cavity 12 above the detection area 81 is opened, and the probes in the detection area 81 are raised so that the probes can contact the lower surface of the sample 100 in the sample cavity 4.

[0034] like Figure 1 As shown, in some embodiments, the vessel assembly 1 includes a plurality of cavities 12, which are stacked along the axial direction of the support shaft 2, such that the bottom plate 11 can cover the opening 122 of the upper cavity 12 to close the opening 122, and when two adjacent cavities 12 are rotated to align, the closed end 121 of the lower cavity 12 can cover the opening 122 of the upper cavity 12 to close the opening 122 of the upper cavity 12.

[0035] In some embodiments, the outer surface of the closed end 121 of the cavity 12 is flat, so that when the closed end 121 of the cavity 12 covers the opening 122 of the cavity 12, it provides a flat contact surface for the sample 100 in the sample cavity 4, so as to achieve excellent flatness of the lower surface of the sample 100, that is, the surface of the sample 100 near the opening 122.

[0036] like Figure 7 As shown, in some embodiments, a sealing gap 16 is formed between the base plate 11 and the opening 122 of the cavity 12, or between the lower cavity 12 and the opening 122 of the upper cavity 12. The sealing gap 16 may be, but is not limited to, fitted with a sealing ring to improve the sealing barrier performance of the sealing gap 16.

[0037] like Figure 7 As shown, in some embodiments, the bottom plate 11 is provided with a flange 13 adapted to the contour of the opening 122 at one end near the cavity 12, the closed end 121 of the cavity 12 is provided with a flange 13 adapted to the contour of the opening 122, and a notch 14 is provided on the cavity 12 near the opening 122. The flange 13 and the notch 14 can be axially inserted, so that when the bottom plate 11 covers the bottom of the cavity 12, or the closed end 121 of the cavity 12 covers the bottom of the cavity 12 above, the bottom plate 11 and the cavity 12, or the cavity 12 and the cavity 12, are horizontally limited by the insertion fit between the flange 13 and the notch 14, so as to avoid displacement or shaking between the bottom plate 11 and the cavity 12, or between the cavity 12 and the cavity 12.

[0038] like Figure 1 As shown, in some embodiments, the conductive paste resistivity detection device further includes a support arm 3, and the base plate 11 / cavity 12 is connected to the support shaft 2 via the support arm 3. The support arm 3 is provided with a window 31, through which the support shaft 2 passes. Figure 5 and Figure 6 As shown, a guide groove 6 is provided on the outer wall of the support shaft 2, and a locking protrusion 5 is provided on the side wall of the window 31. The locking protrusion 5 is installed in the guide groove 6. The guide groove 6 includes a spiral segment 61, a first vertical segment 62, and a second vertical segment 63. The spiral segment 61 extends spirally around the axis of the support shaft 2. The first vertical segment 62 and the second vertical segment 63 are respectively connected to the two ends of the spiral segment 61, and the first vertical segment 62 and the second vertical segment 63 extend along the axial direction of the support shaft 2. In this way, only a thrust along the axial direction of the support shaft 2 needs to be applied to the support arm 3, and the locking protrusion 5 of the support arm 3 can slide sequentially along the first vertical segment 62, the spiral segment 61, and the second vertical segment 63, or the locking protrusion 5 of the support arm 3 can slide sequentially along the second vertical segment 63, the spiral segment 61, and the first vertical segment 62, making the driving method of the locking protrusion 5 sliding in the guide groove 6 simple; Figure 8As shown, when the base plate 11 slides near the spiral section 61 in the vertical section 62, the base plate 11 moves downward and separates from the upper cavity 12. Thus, during the separation process, there is only axial displacement between the base plate 11 and the cavity 12 to release the compressive force, avoiding torsional wear between the base plate 11 and the cavity 12. When the base plate 11 slides near the vertical section 63 in the spiral section 61, the base plate 11 rotates relative to the cavity 12 of the detection area 81 and is offset from the opening 122 at the bottom of the cavity 12. When the base plate 11 slides away from the spiral section 61 in the vertical section 63, the base plate 11 moves downward, as... Figure 9 As shown, when cavity 12 slides near spiral section 61 in vertical section 1 62, cavity 12 moves downward and disengages from the upper cavity 12, preventing torsional wear between adjacent cavities 12. When cavity 12 slides near vertical section 2 63 in spiral section 61, cavity 12 rotates and is offset from the opening 122 at the bottom of the upper cavity 12. When cavity 12 slides away from spiral section 61 in vertical section 2 63, cavity 12 moves downward, allowing the bottom plate 11 to cover the opening 122 of the upper cavity 12 through axial compression, or to seal the lower cavity 12. The closed end 121 closes the opening 122 of the upper cavity 12 through axial extrusion force. In summary, through the above design, the bottom plate 11 moves down to disengage from the opening 122 of the cavity 12, the cavity 12 moves down to close the bottom plate 11 to the opening 122 of the cavity 12, the cavity 12 moves down to disengage the closed end of the lower cavity 12 from the opening 122 of the upper cavity 12, or the cavity 12 moves down to close the closed end 121 of the lower cavity 12 to the opening 122 of the upper cavity 12. During these processes, only axial extrusion force or the release of axial extrusion force exists, making the sealing gap 16 reliable and stable.

[0039] like Figure 4 As shown, in some embodiments, the support arm 3 is provided with two opposing latching protrusions 5, such as... Figure 5 As shown, there are two guide grooves 6 arranged in a circumferential array on the support shaft 2, so that the two locking protrusions 5 on the support arm 3 can be simultaneously set in the two guide grooves 6, so that the contact force between the locking protrusions 5 and the support shaft 2 is balanced, and the locking protrusions 5 can slide smoothly along the guide grooves 6.

[0040] like Figure 4As shown, in some embodiments, an abutment piece 32 is provided on the outer side of the support arm 3. The abutment piece 32 extends circumferentially along the support shaft 2 so as to be connected to the abutment piece 32 by a linear actuator to apply a thrust along the axial direction of the support shaft 2 to the support arm 3. The linear actuator is mounted on the support platform 8. Specifically, the output end of the linear actuator slides against the upper and lower end faces of the abutment piece 32 to apply a thrust along the axial direction of the support shaft 2 to the abutment piece 32 and the support arm 3, driving the support arm 3 to move axially along the support shaft 2 while rotating. The linear actuator can be, but is not limited to, a cylinder or a linear motor.

[0041] like Figure 7 As shown, in some embodiments, touch sensors 15 are provided at the sealing gap 16 between the cavity 12 and the base plate 11, and at the sealing gap 16 between cavities 12, so as to monitor whether the sealing gap 16 is in place.

[0042] like Figure 2 As shown, in some embodiments, the cavity 12 is provided with a second flow channel 124 communicating with the sample cavity 4. In this embodiment, the first flow channel 123 is used to introduce the fluid sample 100 when it is turned on, and the second flow channel 124 is used to adjust the air pressure of the sample cavity 4. Specifically, when the fluid sample 100 is introduced into the sample cavity 4 through the first flow channel 123, the second flow channel 124 is switched to connect to the external environment to adjust the air pressure of the sample cavity 4 to balance with the external environment so that the sample cavity 4 can be easily injected with the sample 100. When the air pressure in the sample chamber 4 is reduced by the second flow channel 124, the first flow channel 123 is switched off. When it is necessary to accelerate the solidification of the fluid sample 100 in the sample chamber 4, the first flow channel 123 is vented with air while the second flow channel 124 is connected to the external environment, or the second flow channel 124 is vented with air while the first flow channel 123 is connected to the external environment, thereby accelerating the air flow rate in the sample chamber 4 and promoting the solidification of the sample 100. Specifically, a switching valve is installed in the first flow channel 123 and a reversing valve is installed in the second flow channel 124.

[0043] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, a lifting structure 7 is also included. The lifting structure 7 is capable of horizontal displacement to support the lower end of the base plate 11 and cavity 12, so that the locking protrusion 5 of the support arm 3 is kept at the top of the vertical section 62. When the base plate 11 and cavity 12 need to be moved down, the lifting structure 7 is horizontally displaced and withdrawn from the lower end of the base plate 11 and cavity 12. The lifting structure 7 may be, but is not limited to, a cylinder or linear motor mounted on the support platform 8.

[0044] like Figure 8 and Figure 9As shown, in some embodiments, when the sample 100 is injected into the sample chamber 4, the top of the sample chamber 4 has an air-formed cavity 9 to provide sufficient space for air flow.

[0045] In some embodiments, while the base plate 11 and cavity 12 are rotated sequentially from bottom to top to the transfer zone 82, the sample 100 can be injected into the sample cavity 4 of the cavity 12 in the transfer zone 82 to complete the next round of injection of the sample cavity 4 during the interval of resistivity detection in the detection zone 81, saving the waiting time of the sample 100 curing process and optimizing the operation time. When the container group 1 in the detection zone 81 has completely moved to the transfer zone 82, the container group 1 is then moved to the detection zone 81 as a whole.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for detecting the resistivity of conductive paste, characterized in that: The device includes a set of containers, a support shaft, and a support platform. The support shaft is mounted on the support platform. The container set includes a bottom plate and a cavity stacked from bottom to top. The bottom plate and the cavity are located on the side of the support shaft. The cavity has a closed top and an open bottom. The cavity has a sample chamber inside and a first flow channel communicating with the sample chamber. The bottom plate is connected to the support shaft and can rotate around the axis of the support shaft. The end face of the bottom plate near the cavity is flat. The cavity is also connected to the support shaft and can rotate around the axis of the support shaft.

2. The conductive paste resistivity detection device according to claim 1, characterized in that: When the base plate and the cavity rotate around the support shaft until the base plate and the opening of the cavity are aligned, the base plate can cover the bottom of the cavity and close the opening. At this time, the sample can be injected into the sample cavity through the first flow channel. When the base plate rotates around the support shaft until the base plate and the opening of the cavity are misaligned, the opening at the bottom of the base plate is opened.

3. The conductive paste resistivity detection device according to claim 1, characterized in that: The support platform is provided with a detection area and a transfer area at intervals. The detection area is equipped with a four-probe tester, which has probes for contacting the sample to detect resistivity.

4. The conductive paste resistivity detection device according to claim 1, characterized in that: The vessel assembly includes multiple cavities, which are stacked along the axial direction of the support shaft. When two adjacent cavities are rotated to align, the closed end of the lower cavity can cover the opening of the upper cavity to close the opening of the upper cavity.

5. The conductive paste resistivity detection device according to claim 4, characterized in that: The outer surface of the closed end of the cavity is flat.

6. The conductive paste resistivity detection device according to claim 4, characterized in that: A sealing gap is formed between the bottom plate and the opening of the cavity, or between the opening of the lower cavity and the opening of the upper cavity.

7. The conductive paste resistivity detection device according to claim 4, characterized in that: The bottom plate has a flange at one end near the cavity that conforms to the contour of the opening, the closed end of the cavity has a flange that conforms to the contour of the opening, and a notch is provided on the cavity near the opening. The flange and the notch can be axially inserted.

8. The conductive paste resistivity detection device according to claim 1, characterized in that: The conductive slurry resistivity detection device also includes a support arm. The base plate / cavity is connected to the support shaft through the support arm. The support arm is provided with a window through which the support shaft passes. The outer side wall of the support shaft is provided with a guide groove. The side wall of the window is provided with a locking protrusion, which is installed in the guide groove. The guide groove includes a spiral section, a vertical section one, and a vertical section two. The spiral section extends spirally around the axis of the support shaft. The vertical section one and the vertical section two are respectively connected to the two ends of the spiral section, and the vertical section one and the vertical section two extend along the axial direction of the support shaft.

9. The conductive paste resistivity detection device according to claim 8, characterized in that: An abutment piece is provided on the outer side of the support arm, and the abutment piece extends circumferentially along the support shaft.

10. The conductive paste resistivity detection device according to claim 1, characterized in that: The cavity is provided with a second flow channel communicating with the sample cavity. The first flow channel is used to introduce the fluid sample when it is turned on. The second flow channel is used to adjust the air pressure of the sample cavity. When the fluid sample is introduced into the sample cavity through the first flow channel, the second flow channel is switched to connect to the external environment. When the air pressure of the sample cavity is reduced through the second flow channel, the first flow channel is switched to close. When it is necessary to promote the accelerated solidification of the fluid sample in the sample cavity, the first flow channel is introduced with airflow while the second flow channel is connected to the external environment, or the second flow channel is introduced with airflow while the first flow channel is connected to the external environment.

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